Doutei Yusha wa Nakayoshi Shitai vol.1 (Digital edition Gungan Comics UP!)

To save the world... Join the group and lose your virginity! The group of heroes finally arrives at the castle of the Demon King. But the demon king's room... A virgin is cursed to die if she enters! The virgin heroine and her fellow heroines try all sorts of tricks to get rid of their virginity in order to defeat the Demon King.... The heroines are appalled by the hero's disgusting behavior... But the heroines are all in love with the hero...? A high-tension love brain battle romantic comedy between a lousy hero and slightly cute heroines!

To save the world... Join the group and lose your virginity! The group of heroes finally arrives at the castle of the Demon King. But the demon king's room... A virgin is cursed to die if she enters! The virgin heroine and her fellow heroines try all sorts of tricks to get rid of their virginity in order to defeat the Demon King.... The heroines are appalled by the hero's disgusting behavior... But the heroines are all in love with the hero...? A high-tension love brain battle romantic comedy between a lousy hero and slightly cute heroines!